View original imageThis is an original generative reconstruction, not a photograph or scientific plate.
146 / Paleozoic
Zosterophyllum
Zosterophyllum myretonianum
Two rows of kidney-shaped sporangia lined curved branch tips like the teeth of an unfinished botanical zipper.
Structured expansion · editorial review pending
- Time range
- About 410–400 million years ago
- Final stage
- Early Devonian
- Geographic range
- Euramerican lake margins and floodplains · Present-day Scotland
01 / ANSWER FIRST
What was Zosterophyllum?
This archive records Zosterophyllum under the scientific name Zosterophyllum myretonianum, with an age of About 410–400 million years ago and a range of Euramerican lake margins and floodplains · Present-day Scotland. Two rows of kidney-shaped sporangia lined curved branch tips like the teeth of an unfinished botanical zipper.
Zosterophyllum sent leafless upright shoots from creeping axes. Lateral sporangia opened along transverse slits, sharing features with lycophytes while belonging to an earlier extinct grade.
02 / QUICK FACTS
Zosterophyllum at a glance
- Scientific name
- Zosterophyllum myretonianum
- Age
- About 410–400 million years ago
- Last recorded stage
- Early Devonian
- Known range
- Euramerican lake margins and floodplains · Present-day Scotland
- Broad group
- plant
- Archive era
- Paleozoic
- Habitat signals
- Freshwater · Wetland
- Documented regions
- Europe
03 / ANATOMY
How was Zosterophyllum built?
Overall body plan
Two rows of kidney-shaped sporangia lined curved branch tips like the teeth of an unfinished botanical zipper.
Growth architecture
The available record is interpreted through preserved proportions, attachment surfaces, wear and comparison with related organisms. For Zosterophyllum, those observations must be separated from features added only for visual reconstruction.
Reproductive structures
Zosterophyllum sent leafless upright shoots from creeping axes. Lateral sporangia opened along transverse slits, sharing features with lycophytes while belonging to an earlier extinct grade.
Growth and individual variation
A single specimen does not define the whole species. Size, maturity, preservation and possible sex differences are considered before anatomical traits are treated as typical of Zosterophyllum.
04 / DIET & BEHAVIOUR
How did Zosterophyllum live?
Zosterophyllum sent leafless upright shoots from creeping axes. Lateral sporangia opened along transverse slits, sharing features with lycophytes while belonging to an earlier extinct grade. This ecological reconstruction is strongest where anatomy, associated organisms and the depositional setting point in the same direction.
05 / DIET & BEHAVIOUR
What shaped its ecological limits?
Its populations depended on plant communities, soils, water availability and climate. Changes in any one factor did not necessarily cause immediate extinction, but interacting pressures could reduce range, recruitment and resilience.
06 / RANGE & HABITAT
Where and when did Zosterophyllum live?
This archive currently lists About 410–400 million years ago; Euramerican lake margins and floodplains · Present-day Scotland. Fossil or historical occurrence data describe where evidence has been found, not every place the taxon once occupied. Species-level age and range limits still require source-specific review.
Documented geographic range
Euramerican lake margins and floodplains · Present-day Scotland. This boundary can change when specimens are reidentified or new localities are published.
Time window
About 410–400 million years ago, with the final recorded stage listed as Early Devonian. Rock units and dating uncertainty mean the true biological range may extend beyond the known record.
Environmental setting
The archive uses the broad habitat labels Freshwater · Wetland. These labels help explore related records; a habitat reconstruction requires evidence from individual localities.
07 / FOSSIL EVIDENCE
What evidence supports reconstructions of Zosterophyllum?
Primary record
Massed axes preserve growth direction and sporangial arrangement; cuticles, stomata and spores refine its identity.
Comparative anatomy
Preserved structures are compared with close and functionally similar organisms. The method can constrain posture and function, but analogy alone cannot prove colour, behaviour or soft tissue.
Age and locality
Stratigraphy and occurrence records place Zosterophyllum within About 410–400 million years ago and Euramerican lake margins and floodplains · Present-day Scotland. Reworked fossils and uncertain provenance are treated cautiously.
Open entity records
Links below connect the archive to available taxonomic and occurrence records. A matching name does not verify every ecological claim, and related-taxon links provide comparison rather than an exact species match.
08 / DISAPPEARANCE & DEBATE
Why did Zosterophyllum disappear?
Roots, microphylls and more efficient branching favored other vascular plants as the Devonian progressed.
The last fossil or observation marks the youngest evidence currently known, not necessarily the death of the final individual. Explanations are strongest when timing, environmental change and population biology agree; otherwise the profile preserves uncertainty instead of assigning a single dramatic cause.
09 / FREQUENTLY ASKED QUESTIONS
Zosterophyllum FAQ
What was Zosterophyllum?
This archive records Zosterophyllum under the scientific name Zosterophyllum myretonianum, with an age of About 410–400 million years ago. Two rows of kidney-shaped sporangia lined curved branch tips like the teeth of an unfinished botanical zipper.
When did Zosterophyllum live?
The current archive range is About 410–400 million years ago; its youngest recorded stage is Early Devonian.
Where was Zosterophyllum found?
The archive currently lists Euramerican lake margins and floodplains · Present-day Scotland. Species-level locality assignments and the full geographic range still require source-specific review.
How do scientists know about Zosterophyllum?
Massed axes preserve growth direction and sporangial arrangement; cuticles, stomata and spores refine its identity.
04 / SOURCES & FURTHER READING
Check the source record
Use the scientific name to compare taxonomy, occurrence records and the fossil record. Database coverage and classifications may differ.
05 / REVISION HISTORY
How has this record changed?
- Completed an AI-assisted bilingual audit of the archive record, corrected identified issues and clarified evidence limits; independent editorial review is pending.
- Expanded into a structured bilingual profile with anatomy, ecology, range, evidence, debate and FAQs; independent editorial review is pending.
- Verified authoritative entity sources and added three responsive reconstruction sizes.
- Initial bilingual species record published.
06 / CORRECTIONS & ADDITIONS